93 research outputs found
Efficacy of Soybean Herbicides on Annual Morninglory
Field experiments were established in 2000 and 2001 at the Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate herbicide efficacy on annual morningglory (Ipomoea spp.) species and other weeds. A randomized complete block design was utilized in each study with each treatment being replicated three times. Plots consisted of four 76 cm rows, 9.1 m in length. The two center rows of each plot were treated, with the outside rows of each plot serving as a weedy check. Crop response, weed control, and grain yield data were collected. Four different experiments were conducted. Two experiments utilized treatments of glyphosate and sulfosate alone and with tankmixes on glyphosate-tolerant soybeans. Two experiments examined various herbicide tankmixes applied to non-glyphosatetolerant soybeans. Soybean injury influenced by postemergence treatments of glyphosate and sulfosate alone and with chlorimuron-ethyl ranged from 0 to 5% four days after treatment (DAT) with the addition of chlorimuron-ethyl resulting in greater injury. Morningglory control 14 DAT ranged from 48 to 63% with sulfosate at 700 g ai/ha providing less control than glyphosate at 1120 g ai/ha. No treatment differences occurred 29 and 42 DAT. No statistical differences among treatments occurred among other weed species evaluated. Soybean injury influenced by postemergence treatments of glyphosate and sulfosate alone and with fomesafen and chloransulam-methyl 4 DAT ranged from 0 to 17% with the addition of fomesafen resulting in greater injury than the addition of chloransulam-methyl. Momingglory control 14 DAT ranged from 60 to 88% with glyphosate + imazethapyr at 840 + 71 g ai/ha providing the least control and sulfosate + fomesafen at 700 + 201 g ai/ha providing greater control. Soybean injury influenced by pre and postemergence treatments 7 DAT ranged from 0 to 30% in conventional soybeans. Applications of carfentrazone resulted in the greatest injury. Momingglory control 20 days after planting (DAP) ranged from 0 to 99% with chloransulam + sulfentrazone providing the highest control. Momingglory control 28 DAT ranged from 30 to 99% with s-metolachlor + metribuzin + acifluorfen + fenoxaprop-ethyl + fluazifop-P providing the least control. Common cocklebur control ranged from 13% to 97% 20 DAP with pendimethalin + imazethapyr providing the least control. Treatments containing aciflourfen + bentazon controlled common cocklebur \u3e 80% 28 DAT. Soybean injury influenced by preemergence and postemergence treatments 7 DAT in conventional soybeans ranged from 0 to 33% with sulfentrazone + clomazone + chlorimuron-ethyl + carfentrazone resulting in the greatest injury. Momingglory control 7 DAT ranged from 0 to 99% with sulfentrazone + clomazone plus chlorimuron-ethyl + carfentrazone having the greatest control. Momingglory control 28 DAT ranged from 82 to 94% with no differences among treatment
Community-university partnerships in the neoliberal university through an ethics of care and slow scholarship lens
There is an established body of higher education (HE) literature on the different purposes of universities (Boyer 1996; Harkavy 2006) and the current context and impacts of neoliberalisation on the academy (Giroux 2002; Fisher 2009; Hill 2016). There is also significant research on engaged scholarship and community-university partnerships (CUPs) (Hart et al. 2013; Beaulieu et al. 2018). However, the role and concepts of care, emotions, and emotional labour, as well as the voices of the participants, are largely absent from both sets of literature. There is, however, a growing body of feminist literature interrogating the impacts of the current HE context on academics from an Ethic of Care (EoC) and Slow Scholarship (SS) lens (Tronto 1993; Mountz et al. 2015; Puawai Collective 2019; Evans 2016). However, here too there is a gap in terms of the majority of this literature not focussing on the role that care and emotion play in CUPs and how they are experienced. My research is both located in and framed by this intersection of the three literatures and combines an ethnographic approach with traditional methods including interviews. Applying an EoC and SS lens and highlighting the voices of resident and academic participants, the findings from two UK case study sites suggest that participants benefit most from the relational aspects of CUPs and that CUPs have the potential to be transformative. Contributing to critiques of the neoliberal university and contrary to the current civic and impact rhetoric, this research argues that HE’s audit and temporal cultures and structures are ‘care-less’ and: incompatible with the practical, and more importantly, the essential relational and temporal aspects of long-term, participatory, relationship-based CUPs; can lead to embodied impacts for some engaged academics; disincentivise potential engaged academics; and also disproportionately negatively impact those already doing slow, relationship-based work in and with local communities
Effects of Backtracking on PageRank
In this paper, we consider three variations on standard PageRank:
Non-backtracking PageRank, -PageRank, and -PageRank, all of which
alter the standard formula by adjusting the likelihood of backtracking in the
algorithm's random walk. We show that in the case of regular and bipartite
biregular graphs, standard PageRank and its variants are equivalent. We also
compare each centrality measure and investigate their clustering capabilities
Evaluating trespass prevention: working with young people as co-researchers and filmmakers on a railway safety project
Recent attempts have been made by Network Rail and the British Transport Police to discourage young people from committing ‘railway trespass’ – the dangerous act of illegally gaining access to live railway tracks. Whilst public safety campaigns have a long history in the UK and beyond, little research has been dedicated to a better understanding of how young people engage with this media. This article reflects on Evaluating Trespass Prevention (2021), a project which involved a small group of Further Education (FE) Media Students as co-researchers exploring railway trespass prevention. The young co-researchers co-produced a new evaluation toolkit, as well as creatively exploring themes of railway trespass through documentary interviewing and filmmaking. Presenting our critical reflections on the process of working with young co-researchers on this project, we argue for the broader adoption of an adaptable and iterative approach to meaningful engagement with young people in relation to contemporary social issues
Long-Term Outcome after Vitrectomy for Macular Edema with Retinal Vein Occlusion Dividing into the Occlusion Site
Purpose. To investigate the efficacy of treatment for macular edema secondary to retinal vein occlusion (RVO) with vitrectomy. Methods. This retrospective study identified patients with macular edema associated with RVO between January 2004 and April 2006. Inclusion criteria were eyes with (1) preoperative visual acuity (VA) of 20/40 or worse, (2) a central foveal thickness (CFT) greater than 250 μm, and (3) vitrectomy with internal limiting membrane and intravitreal triamcinolone acetonide. Each patient had their RVO classified as a major or macular BRVO or hemispheric RVO (HSRVO). Results. Forty-six eyes with major BRVO, 18 eyes with macular BRVO, and 17 eyes with HSRVO were investigated. VA was significantly improved at 24 months after surgery for each group (P<0.05). Vision in the macular BRVO group 24 months after surgery was significantly better than that in other groups (P<0.05). For each group, a concomitant reduction of CFT was noted at every time point when compared to preoperative values (P<0.001). Conclusions. In macular BRVO, the postoperative vision 24 months after surgery was significantly better than the other groups. These findings suggest that additional and earlier treatments might be more important for patients with major BRVO and HSRVO than for those with macular BRVO
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Longtime tillage experiments on eastern Oregon wheat land
Published February 1957. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
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The Pendleton Experiment Station : its development, program, and accomplishments 1928 to 1966
Published March 1967. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
Does a SLAP lesion affect shoulder muscle recruitment as measured by EMG activity during a rugby tackle?
Background: The study objective was to assess the influence of a SLAP lesion on onset of EMG activity in shoulder muscles during a front on rugby football tackle within professional rugby players.
Methods: Mixed cross-sectional study evaluating between and within group differences in EMG onset times. Testing was carried out within the physiotherapy department of a university sports medicine clinic. The test group consisted of 7 players with clinically diagnosed SLAP lesions, later verified on arthroscopy. The reference group consisted of 15 uninjured and full time professional rugby players from within the same playing squad. Controlled tackles were performed against a tackle dummy. Onset of EMG activity was assessed from surface EMG of Pectorialis Major, Biceps Brachii, Latissimus Dorsi, Serratus Anterior and Infraspinatus muscles relative to time of impact. Analysis of differences in activation timing between muscles and limbs (injured versus non-injured side and non injured side versus matched reference group).
Results: Serratus Anterior was activated prior to all other muscles in all (P = 0.001-0.03) subjects. In the SLAP
injured shoulder Biceps was activated later than in the non-injured side. Onset times of all muscles of the noninjured shoulder in the injured player were consistently earlier compared with the reference group. Whereas, within
the injured shoulder, all muscle activation timings were later than in the reference group.
Conclusions: This study shows that in shoulders with a SLAP lesion there is a trend towards delay in activation time of Biceps and other muscles with the exception of an associated earlier onset of activation of Serratus anterior, possibly due to a coping strategy to protect glenohumeral stability and thoraco-scapular stability. This
trend was not statistically significant in all cases
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Water requirement of wheat at the Sherman Branch Experiment Station
Published March 1943. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
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